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Chemistry

Authored by Sroeurn Dalis

Chemistry

10th Grade

Used 4+ times

Chemistry
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13 questions

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1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

1. សរសេរនិងថ្លឹងសមីការ៖

Zn + CuSO4 ​​ ឲ្យផលជា ​ZnSO4 + Cu

Zn + CuSO4 ​​ ឲ្យផលជា 2 ZnSO4 + Cu

Zn + 2CuSO4 ​​ ឲ្យផលជា ​ZnSO4 + 2Cu

2Zn + 2CuSO4 ​​ ឲ្យផលជា ​2ZnSO4 + 2Cu

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

K2O + H2O ឲ្យផលជា 2 KOH

A . True

B. False

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

3. តើ BaCl2 ជាអ្វី?

ក. អាស៊ីត

ខ. អំបិល

គ. បាស

ឃ. អុកស៊ីត

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

៤. សំណប៉ាហាំង2ក្លរួមានរូបមន្តដូចម្ដេច?

SnCl5

SnCl2

PbCl2

CaCl2

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

5. គណនាចំនួនណឺត្រុងរបស់ 4020Ca

n = 29

n =20

n =12

n =40

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

6. សមាសធាតុដែលម៉ូលេគុលវាបង្កឡើងដោយអាតូមលោហៈនិងរ៉ាឌីកាល់ហៅថា

អំបិល

អាស៊ីត

អុកស៊ីត

បាស

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

៧. សមាសធាតុដែលម៉ូលេគុលវាបង្កឡើងដោយអាតូមលោហៈនិងបង្គុំអ៊ីដ្រុកស៊ីលហៅថា

អំបិល

អាស៊ីត

អុកស៊ីត

បាស

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